Aglaonema plant named &#39;twyag0022&#39;

ABSTRACT

A new  Aglaonema  plant particularly distinguished by having foliage that is medium to dark green and variably marked with spots and coalescing blotches of bright pink, primary veins that are pale green and flushed with pink, midribs that are pale green and variably tinged with pink, a dense, full, low spreading growth habit and intermediate in stature and yellow-green spathes, is disclosed.

GENUS AND SPECIES

Aglaonema hybrid

VARIETY DENOMINATION

‘TWYAG0022’

BACKGROUND OF THE NEW PLANT

The present invention comprises a new and distinct cultivar of Aglaonema, botanically known as Aglaonema hybrid and hereinafter referred to by the variety name as ‘TWYAG0022’. The new variety originated from an open pollination made in Bogor, West Java, Indonesia between unknown individual plants of Aglaonema (species unknown). The new variety was discovered as a single plant within the progeny of the stated open pollination in a controlled environment in Bogor, West Java, Indonesia.

The new variety was created in Bogor, West Java, Indonesia and has been asexually reproduced repeatedly by vegetative cuttings in Apopka, Fla. for two or more generations. The present invention has been found to retain its distinctive characteristics through successive asexual propagations.

SUMMARY OF THE INVENTION

The following are the most outstanding and distinguishing characteristics of the new variety when grown under normal horticultural practices in Apopka, Fla.

1. Foliage that is medium to dark green and variably marked with spots and coalescing blotches of bright pink;

2. Primary veins are pale green and flushed with pink;

3. Midrib is pale green and variably tinged with pink;

4. Dense, full, low spreading growth habit and intermediate in stature; and

5. Yellow-green spathes.

DESCRIPTION OF THE PHOTOGRAPH

This new Aglaonema plant is illustrated by the accompanying photograph which shows the overall plant habit and leaf color. The colors shown are as true as can be reasonably obtained by conventional photographic procedures.

DESCRIPTION OF THE NEW VARIETY

The following detailed description sets forth the distinctive characteristics of ‘TWYAG0022’. The data which define these characteristics were collected from asexual reproductions carried out in Apopka, Fla. The plant history was taken on 12 month-old plants started from a single four-leaf rooted cutting, still in a vegetative state and grown in Apopka, Fla. Rooted cuttings were planted in 15 cm pots and grown in a greenhouse in August 2006. The plants were pinched once. Color readings were taken under natural light. Color references are primarily to the RHS Colour Chart of The Royal Horticultural Society of London (RHS) (2001).

DETAILED BOTANICAL DESCRIPTION

-   Classification:     -   -   Family.—Araceae.         -   Botanical.—Aglaonema hybrid.         -   Common.—Chinese Evergreen. -   Growth:     -   -   Form.—Low spreading and much wider than tall; new leaves             emerge straight upright and mature leaves lean outward.         -   Growth and branching habit.—Dense, full, low spreading             growth habit and intermediate in stature.         -   Height (from soil to top of leaf plane).—15 cm to 21 cm.         -   Diameter (area of spread, as measured from leaf tip to leaf             tip across the canopy).—42 cm to 57 cm.         -   Growth rate.—Somewhat slower than typical commercial             Aglaonema varieties.         -   Vigor.—Plants produce axillary branches and numerous leaves;             consistent progressive growth.         -   Time to produce a finished flowering plant.—About 12 months             starting from a single 4-leaf rooted cutting with the plants             pinched once in 15 cm to 20 cm pots.         -   Root description.—Thick, fleshy, white roots with finer             lateral branches.         -   Number of divisions or clumps per year.—About four 4-leaf             cuttings per year.         -   Durability of foliage to stresses.—Foliage holds up well             against damage from shipping and handling; plants are             durable and have excellent indoor keeping quality.         -   High temperature tolerance.—About 104° F. for several hours             without damage.         -   Low temperature tolerance.—About 55° F. for several hours             without damage. -   Stems:     -   -   Number of branches per plant.—About 9.         -   Type of branching.—Basal.         -   Length (from soil line to junction of the newest two             leaves).—5 cm to 7 cm.         -   Diameter (measured from the midpoint).—1.1 cm.         -   Internode length.—0.8 cm to 1.0 cm.         -   Color.—Immature: RHS 146B to RHS 146C and tinged with RHS             144A and RHS 164B. Mature: RHS 147A and RHS 146A and tinged             with RHS 164B Oldest stems: RHS 147A to RHS N189A.         -   Shape and appearance.—Columnar, cylindrical and upright.         -   Aspect.—Vertical and upright or leaning outward about 30             degrees; the apex of the stem is often turned up.         -   Strength.—Sturdy and somewhat flexible.         -   Axillary buds.—Shape: Elliptic, convex Length: 0.6 cm Width:             0.3 cm Color: RHS 145C to RHS 146C. -   Leaves:     -   -   Arrangement.—Alternate and simple; the leaves are arranged             opposite along the stem; the leaf blade is mostly flat.         -   Quantity of leaves per stem.—2 to 3.         -   Immature leaf (newly expanded leaf).—Color: Upper surface:             Base color is darker and greener than but closest to RHS             147A and variably marked with RHS 51B to RHS 51C to RHS 51D             spots and coalescing blotches Lower surface: Base color is             RHS 147A and has an overall cast of RHS N186C; the upper             surface patterns and markings are visible through to the             lower surface of the leaf; the leaf blade is variably marked             with RHS 52B to RHS 52C spots and coalescing blotches         -   Mature leaf.—Color: Upper surface: Base color is darker and             greener than but closest to RHS 147A and variably marked             with RHS 146D spots and coalescing blotches tinged with RHS             49C and RHS 54A to RHS 54B Lower surface: Base color is RHS             147A and has an overall cast of RHS N186C; the upper surface             patterns and markings are visible through to the lower             surface of the leaf; the leaf blade is variably marked with             RHS 52B to RHS 52C spots and coalescing blotches.         -   Length.—17 cm to 21.5 cm.         -   Width.—Flattened: 11 cm to 15 cm Not flattened: 10.5 cm to             14.5 cm.         -   Shape.—Ovate.         -   Apex.—Acuminate.         -   Base.—Obtuse.         -   Margin.—Smooth, entire and with some broad undulations.         -   Texture.—Smooth, supple and leathery; new leaves are shiny             and mature leaves are glossy to dull; the leaf blade is             convex between the main veins resulting in a textured             appearance.         -   Pubescence.—Absent.         -   Venation pattern.—Pinnate and radiating outward from the             midrib in a herringbone Arrangement.         -   Venation color.—Immature leaf (newly expanded leaf): Upper             surface: Primary veins: RHS 146D and tinged with RHS 49C             Midrib: RHS 148D to RHS 156D and tinged with RHS 49D at the             proximal end and RHS 52B at the distal end Lower surface:             Primary veins: RHS 52C Midrib: RHS 148A to RHS 148B at the             proximal end and 52C at the distal end Mature leaf: Upper             surface: Primary veins: RHS 146D Midrib: RHS 148D and             streaked with RHS 148A at the proximal end and RHS 52B at             the distal end Lower surface: Primary veins: RHS 49C to RHS             49D Midrib: RHS 148A to RHS 148B at the proximal end and RHS             52C to RHS 52D at the distal end. -   Petioles:     -   -   Aspect.—Vertical and upright when newly expanded and             becoming curved outward to about 45 degrees with maturity.         -   Length.—5.0 cm to 6.1 cm.         -   Diameter.—Distal: 0.4 cm Proximal (petiole and petiole             sheath clasps the stem proximally): Flattened: 2.4 cm Not             flattened: 1.1 cm Depth (not flattened): 0.65 cm.         -   Color.—Distal (between the top of the wing and the base of             the leaf): RHS 147A with RHS 145D spots and often tinged             overall with RHS 49D Proximal: RHS 147A to RHS 147B with RHS             145D spots and streaks and often tinged overall with RHS 49D             Areas adjacent to the stem: RHS 146D and streaked with RHS             145D.         -   Wing.—Length: 1.5 cm to 2.0 cm Diameter: Mid-point: 0.8 cm             Base: 1.1 cm Depth: 0.65 cm Color: Inside: RHS 157A tinged             with RHS 185D Outside: RHS 147A to RHS 147B with RHS 145D             spots and streaks and often tinged with RHS 49D; margin is             often flushed with RHS 185A and tinged with RHS 185C Area             adjacent to the stem: RHS 146D and streaked with RHS 145D.         -   Cataphylls.—Length: 3.3 cm to 7.0 cm Width: 1.7 cm to 2.0 cm             Shape: Lanceolate, keeled and translucent Apex: Cuspidate to             emarginate Base: Clasps the stem Color: Inside: RHS 49C             tinged with RHS 48C Outside: the proximal end is RHS 146D             and RHS 145C and the distal end is RHS 48C to RHS 48D and             often mottled with RHS 146B and RHS 146D. -   Inflorescence:     -   -   Appearance.—Hooded spathes surrounding a columnar spadix are             borne atop an upright peduncle; monoecious; the spadix is a             central column of sessile, simple male and female flowers             separated into two zones; the male flowers occupy the upper             two-thirds of the spadix while the female flowers occupy the             lower one-third of the spadix.         -   Quantity of inflorescences per stem.—About 2 to 3.         -   Quantity of inflorescences per plant.—About 8.         -   Aspect.—Upright.         -   Height (from base of peduncle to tip of spathe).—13.5 cm.         -   Diameter/width.—6.0 cm.         -   Flowering habit.—Seasonal; the natural flowering season is             summer and fall as observed in Apopka, Fla.; the flowers are             persistent.         -   Fragrance.—Absent.         -   Ratio of inflorescence to opening.—About 1 new flower every             14 to 21 days.         -   Peduncle.—Length: 8.0 cm Diameter: 0.5 cm Aspect: Upright             and often curved Strength: Sturdy and flexible Color: RHS             146A to RHS 146B. -   Spathe:     -   -   Appearance.—Simple, hooded, cupped and enclosing the spadix.         -   Aspect.—Upright.         -   Shape.—Elliptic.         -   Apex.—Cuspidate.         -   Margin.—Entire.         -   Texture.—Smooth and shiny on the inside and smooth and             glossy on the outside.         -   Size.—Length: 5.9 cm Width: 1.8 cm (not flattened) and 5.9             cm (flattened).         -   Color (when opening).—Front side: RHS 147C Rear side:             Greener than but closet to RHS 137B.         -   Color (fully opened).—Front side: RHS 147D Rear side: RHS             146C to RHS 146D.         -   Fading to.—RHS 200A to RHS 200B. -   Spadix:     -   -   Appearance and shape.—Columnar.         -   Aspect.—Upright.         -   Size.—Length: 4.3 cm Diameter of the female zone: 1.1 cm             Diameter of the male zone: 1.1 cm Length of the female zone:             0.9 cm Length of the male zone: 3.4 cm.         -   Apex.—Obtuse.         -   Base.—Obtuse.         -   Margin.—Pebbled.         -   Color.—Female zone (immature): RHS 18B Male zone (immature):             RHS 9D Female zone (mature): RHS 18A Male zone (mature): RHS             8D. -   Flowers:     -   -   Type.—Simple.         -   Quantity of female flowers per spadix.—13.         -   Quantity of male flowers per spadix.—280.         -   Shape of female.—Ovate to elliptic.         -   Shape of male.—Obovate, inverted triangle.         -   Size.—Female width: 0.25 cm Male width: 0.19 cm Female             height and depth: 0.4 cm Male height and depth: 0.3 cm. -   Reproductive organs:     -   -   Stigma color.—RHS 18A.         -   Ovary color.—RHS 145D.         -   Anther color.—RHS 8D. -   Fruit and seed set: None observed. -   Disease and insect resistance: Typical of Aglaonema species; no     particular susceptibility or resistance to pests or diseases noted.

COMPARISON WITH KNOWN VARIETIES

‘TWYAG0022’ differs from the commercial variety ‘TWYAG0003’ (U.S. Plant Pat. No. 17,673) in that ‘TWYAG0022’ is shorter (has a plant height of 15 cm to 21 cm), while ‘TWYAG0003’ is taller (has a plant height of about 27 cm). The leaf apex of ‘TWYAG0022’ is acuminate, while the leaf apex of ‘TWYAG0003’ is acute. Additionally, the leaf shape of ‘TWYAG0022’ is ovate, while the leaf shape of ‘TWYAG0003’ is elliptic. 

1. A new and distinct cultivar of Aglaonema plant as shown and described herein. 